Color
#434a89
#434a89rgb(67, 74, 137)hsl(234, 34%, 40%)oklch(0.435 0.103 276.4)Colors that go with #434a89
Charcoal, Sea Green and Steel Blue lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.
Charcoal #36454f
neutralshippedCharcoal is the text near-black for #434a89: softer than #000 and cool enough to feel like part of the same palette.
Sea Green #2e8b57
triadicshippedSea Green completes a triad with #434a89 — three hues spaced evenly round the wheel, the classic way to get energy into a palette without a clash.
Steel Blue #4682b4
analogousshippedSteel Blue is #434a89's neighbour on the wheel, so the two read as one family — use it for hover states, gradients and secondary surfaces.
Blue #0000ff
shipped4 real palettes, including CVS's brand system and Procter & Gamble's brand system put Blue beside #434a89, as the supporting colour.
Cornflower Blue #6495ed
shippedDesigners have shipped Cornflower Blue with #434a89: 4 real palettes, including Blue Mono and Coca-Cola's brand system, as the supporting colour.
Crimson #dc143c
shippedCrimson is paired with #434a89 in 9 real palettes, including Amazon's brand system and Codecademy's brand system, as the supporting colour.
Midnight Blue #191970
shipped13 real palettes, including First Snow and Microsoft's brand system put Midnight Blue beside #434a89, as that palette's text colour.
Powder Blue #b0e0e6
shippedDesigners have shipped Powder Blue with #434a89: 4 real palettes, including First Snow and Glacier, as the accent.
Real palettes that use #434a89
Tints & shades
Harmonies
Contrast
| #434a89 as text | Ratio | AA | AA large | AAA | Fix |
|---|---|---|---|---|---|
Aaon white | 8.14:1 | pass | pass | pass | Passes AAA — no fix needed. |
Aaon black | 2.58:1 | fail | fail | fail |
Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #434a89 as the background.
Brands using this color
No public brand in the corpus uses this exact color yet. Extract a brand to add one.
Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.
https://mcp.brandsweets.com/colors/mcpclaude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
›analyze #434a89 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link
/palettes/new/434a89-9d9cc4-df8a4e-241f2d-e9eef1?lock=0&style=vibrantWant the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.
Machine-readable: color.md